SSD or SSHD?

I am currently looking at upgrading my hard drive to an SSD to run the OS and some key games with a 1tb HDD for the bulk of the storage. However, I have come across these new Seagate hybrid Ssd/HDD drives that are half the price and can handle 2tb. Has anyone tried these out and could give me an idea if they are a better option compared to an ssd?